package org.example;
import java.util.*;
// 按两次 Shift 打开“随处搜索”对话框并输入 `show whitespaces`，
// 然后按 Enter 键。现在，您可以在代码中看到空格字符。
public class Main {
    public static void main(String[] args) {
        int year1, month1, day1, year2, month2, day2;
        try {
            year1 = Integer.parseInt(args[0]);
            month1 = Integer.parseInt(args[1]);
            day1 = Integer.parseInt(args[2]);
            year2 = Integer.parseInt(args[3]);
            month2 = Integer.parseInt(args[4]);
            day2 = Integer.parseInt(args[5]);
        } catch (NumberFormatException e) {
            year1 = 2012;
            month1 = 0;
            day1 = 1;
            year2 = 2018;
            month2 = 0;
            day2 = 1;
        }
        Calendar calendar = Calendar.getInstance();
        calendar.set(year1, month1-1, day1);
        long timeYear1 = calendar.getTimeInMillis();
        calendar.set(year2, month2-1, day2);
        long timeYear2 = calendar.getTimeInMillis();
        long 相隔天数 = Math.abs((timeYear1 - timeYear2) / (1000 * 60 * 60 * 24));
        System.out.println("" + year1 + "年" + month1 + "月" + day1 + "日和" +
                year2 + "年" + month2 + "月" + day2 + "日相隔" + 相隔天数 + "天");
    }
}